Method of and apparatus for creping paper



F as t 6 1927;

p A. E. cor-"Rm METHOD OF AND APPARATUS FOR CREPING PAPER Filed June 7. 1926 Patented Sep t, e, sear;

.applieation filed time 7, was. Serial Ito. lllfids.

The invention relates to a method of and apparatus for creping paper and has as an object the creping of aper as a continuous process in the manufiicture thereof.

An illustrative embodiment of the apparatus for carrying out the recess is shown in the accompanying drawing wherein the figure is a diagrammatic side view of a paper making machine showing a portion v only of the-drying end.

As shown, the feed end of the machine isindicated at 10 and the Fourdrinier portion at 11. An up er felt 12 and a lower felt 13 are indicate receiving the web from 15 the Fourdrinier wire. The formed web is indicated at 14 as assing to the drying portion of the machine independently of the felt. In the carrying'out of the present inventionthe web 14 is shown'as pressed against; the first heated drying roll 15 by means of a press roll 16, which latter roll should have a smooth surface as indicated by the drawing, thus resulting in plastering the web upon the roll 15 and the adhesion; of the web to the roll because of its heated condition.

To crepe the paper, a doctor is indicated at 17 which acts in the well-known manner to scrape the web from the roll with a resultant creping. The creped paper is then passed to the succeeding drying rol 318 being maintaind-thereagainst by belts 19, 20 in the usual manner.

' l3y virtue of the process supplied by the 85 invention the paper is continuously creped during the rocess ofits manufacture and the usual a ditional expense-of drying the paper, removing the paper from the machine, remoiste'nin the same in order to 40 crepe is avoided. y use of the press roll '16-to plaster thepaper on to drum 15 in the absence of a felt holding the web against the roll, the steam is free to leave the web, thus resulting in a more uniform and efficient adhesion of the web to the roll and the crepe that results is therefore a full crepe.

The apparatus for carrying out the process can therefore be applied to existing machines with a minimum of expense,

The process may be carried out without use of a heated roll as at 1 5. However, in

, 4 I claim such practice, the roll taking the piece of roll 15 and the roll pressing the web thereagainst as at 16, would require to be made of material of difierent characters in order to insure that the paper web would at all timesadhere to the creping roll instead of to the other roll. Possible materials for the two rolls, when a heated roll is not to be used, would be wood, rubber, or material of a relatively soft composition for the press roll and metal, or material which is relatively harder than the press roll for the roll to which the web is to adhere.

Minor changes may be made in the appa ratus without departing from the spirit of the invention. a

1.. The process acture thereof which comprises passing the web in the condition received from the wetend of the machine between a smooth surfaced press roll and a heated roll, said rolls web upon t e surface of the heated roll, a

doctor to scrape the web from the heated roll with resultant cre ing thereof and means to dry the 'creped we 3. In the making and creping oi paper as a continuous process the method which comprises passin the web in the condition received from te wet end of the'machine be.- tween and in direct contact with a creping? roll and a smooth surfaced press roll, said rolls having difi'ering characteristics such as to cause the web to adhere to the crepin' roll, scraping the web from the creping re and pass ng the thus creped web to the drying end of the machine.

AUSHN a. boards.

of making and creping paper as a continuing process in the manupaper we a heated roll receiving the 

